Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • In Brief
  • Published:

Growth of 2D materials

Stable 2D magnets

Nature Reviews Materials volume 8, page 779 (2023)Cite this article

Subjects

2D magnets are of interest for applications such as spintronics, enabling the design of more compact and energy-efficient devices. 2D magnets based on iron oxide (Fe2O3), in particular, are stable in air, which simplifies their processing for eventual applications. Among the various polymorphs of this material, γ-Fe2O3 stands out as highly promising due to its high magnetic order temperature of 950 K (that is, the point at which the material retains its magnetic properties). However, γ-Fe2O3 is thermodynamically unstable when the particle size exceeds 50 nm, which limits its applications. Wuhong Xue, Huali Yang, Xiaohong Xu and colleagues demonstrate the controllable growth of 2D γ-Fe2O3 using space-confined chemical vapor deposition (CVD) on a mica substrate. The mica substrate is particularly beneficial because of its smooth surface and lack of dangling bonds, making it easier for reactive atoms to move and come together to form crystals. With this approach, the lateral size of the obtained nanoflakes could be adjusted to reach tens of micrometres. Furthermore, the arrangement of magnetic domains within a γ-Fe2O3 nanoflake was found to be affected by the nanoflake’s lateral dimensions.

This is a preview of subscription content, access via your institution

Access options

Buy this article

  • Purchase on SpringerLink
  • Instant access to full article PDF
Buy now

Prices may be subject to local taxes which are calculated during checkout

References

Original article

Download references

Author information

Authors and Affiliations

  1. Nature Reviews Materials http://www.nature.com/natrevmats/

    Charlotte Allard

Authors
  1. Charlotte Allard
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Charlotte Allard.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Allard, C. Stable 2D magnets. Nat Rev Mater 8, 779 (2023). https://doi.org/10.1038/s41578-023-00628-z

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1038/s41578-023-00628-z

Search

Advanced search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing